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Details

Type: Bug
Resolution: Done
Priority: P2: Important
Fix Version/s: 5.9.3, 5.10.0
Affects Version/s: 5.8.0, 5.9.1
Component/s: QPA: Wayland
Labels:
None
Environment:

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Qt 5.8 on Embedded Device (using OpenEmbedded and the meta-qt5 layer), running LuneOS on Nexus 5.

A patch, working for us, exists here: https://github.com/webOS-ports/meta-webos-ports/blob/master/meta-luneui/recipes-qt/qt5/qtwayland/0003-QWaylandWindow-reset-window-should-reset-mask.patch

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Qt 5.8 on Embedded Device (using OpenEmbedded and the meta-qt5 layer), running LuneOS on Nexus 5. A patch, working for us, exists here: https://github.com/webOS-ports/meta-webos-ports/blob/master/meta-luneui/recipes-qt/qt5/qtwayland/0003-QWaylandWindow-reset-window-should-reset-mask.patch

Description

In QtWayand, when the window is reset ( https://github.com/qt/qtwayland/blob/5.9/src/client/qwaylandwindow.cpp#L243 ), the window's mask is not changed. It means that when the window will be initialized again, it will not re-send the mask description to the server side through Wayland, leading to a server side window that doesn't have the wanted mask.

A simple fix would be to also reset mMask to QRegion().